Howabd e



` H. E. GOFPIN.

BXPLOSIONBNGINE. APPLICATION HLEIXAPBJO, 1911.

1,024,619. i Pat-,ebea A151330, 1912.

l [777271 fdr .UNiTED strnrns-V PATENT OFFICE.

, HOWARD 'n ceram, or nnrn'ornmcmeaiv.

Ex'rnosrcN-nneinr l Speciicaticn ef Letters Patent. Application lile'dApril 20, 1 911. Serial No. 622,291

` To al? 'whom it may concem:

Be it known that I, H OWARD E. CoFiiiN,

a citizen of ,the United States of America,`

residing at Detroit, in the county of kVlayne and State of Michigan, have invented certain new and useful Improvements in Explosion-Engines, of which the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates to explosion enginesV of the type in which rctary'valves are employed, and the invention consists in the construction as hereinafter. set forth.

. In the drawin -Figure 1 is a vertical central section t ough the cylinder and lhead of the engine; E1g.'2 is a plan view of the valve disk; and Fig. 3 is a plan of the valve seat with the cylinder in section.

is the cylinder 'of the `engine provided at-"its upper end with anintegral head B havin inlet and exhaust ports C and l) exten ing therethrough.

E'is a recess formed inthe outer1 face of the head in which a rotary disk valve F is placed, said valve having a'port G which' alternately registers with the portsA C and D.

y H is `a. detachable head for the cylinder which has inlet and exhaust passages'I and J arranged to register with the ports C and D. This head is also provided with a central journal bearing K for the stem L of the rotary valve, and a-water jacket is -i formed integral with the head which surrounds this sas I and is 'a'gear wheel upon the stem L formingv a member. of the drive train (not l shown), Nis a'detachable cap for the head H housing the gear wheel,` and O is a bearingl on said cap for the outer end of the stem L. f

With the construction as described itvwill be observed that the rotary valve disk F is arranged between two parallel seats or bearing faces, one formed by the integral head B and the other by the detachable head H; The inner or integral head serves to protect ;ournal bearing and the pasA cylinder and the detachable head In use the engine may be constructed'i units of any desired number of cylinders,

disk and also protects thel joint between the vl?atentedArpr.30,191'f2., l

the gears M intermeshing with each other. j I.:

The valve disks are timed to open the ports C and D of the cylinders in propersequence and a liquid seal between the valve and its seat is maintained by feeding lubricantv through the axial (passage-Q in the stemto -g the bearing K an As shown in Fig. 1 the outer edge.l of the port G is of a radius equal to that ofthe cylinder bore. This enlarges the port area within a given angle and ispossible by 'reason of the fact that the valve is of larger then distributing it: centrifugal action from the face ofthe valve.`

diameter than the cylinder bore'. `flfhus. the

inlet and exhaust passages may bejlarger and are freer from restrictions than 'the valves having no greater diameter thanl-lie f i cylinder. i,

l/Vhat I claim as my inventionfisf In an explosion engine, the combination of a cylinder having an"integral head, y, f

and a detachable head with registering ,ports therein, of a rot-ary valve disk ai'1'anged,be i

tween said integral and dct-achableheads, i? ,i

tion with a cylinder having aIrrintegral-iv- Q. In an explosion engine, thefcombina-v head, and` a detachable head with-register ing ports therein, a valve disk arrangedin a recess in said integral head and having opposed bearing faces on said headfand the detachable head.-

3. In an explosion engine, the combina-- tion with a cylinder having an integral head with a recess in its outer face, of a valve disk located l-in said recess and' provided with alport for registering with the ports in said head, and a detachable head having a central Journal bearing vfor the `stern of l said valve.A

4. "In an explosion outer face, a valve disk located inthe recess in said head, a packing ring inthe periphl' ery of said disk engaging the peripheral engine, the cembngf. tion with acylinder having an integral ported head provided ,with'a recessin its wall of said' recess, a detachable head having ports registering with said integral head, and a rotary stein for said valve disk passing through said 'detachable head and journaled therein. 4 5. InA an explosion engine, the cembination with a lcylinder having` an integral ported head with a. reness in its outer face, tion with :i cylinder having ai ported hond of a. oirouiar valve disk located in said reof o rotary disk valve of greater diameter cess, a, detachable head secured to said cy1- than such cylinder and having a port exinder adjacent to the opposite face of said tending outward to the full radius of the 15 vulve disk and provided with a central jour-V Cylinder bore.

,nal bearing, :i rotary stem for said Valve In testimony whereof I aiix my signature disk passim outward through said journal in presence of two witnesses. bearing, av rive wheel for said stom, and a I HUWTARI.) COFFN detachable cap for housing' said drive wheel Witnesses: l0 and stein secured to said detachable head. L. M. CABLE, 6. In an explosion engine, the combina- G. L. PERRY. 

